Lock-nut.



C. W. NEAL.

LOCK NUT.

PPLIOATION FILED SEPT 13, 1911 Patented Mar. 10, 1914,

me/nto@ CharZeSW. Nea/Z WMe/sow UNITED STATES PATENT OFFICE.

CHARLES WATSON NEAL, OF CHERAW, SOUTH CAROLINA, ASSIGNOR OF TWO-THIRDS TO WILLIAM MITCHELL AND ONE-THIRD TO SAMUEL M. FINKLEA, BOTH 0F CHERAW, SOUTH CAROLINA.

LOCK-NUT.

Specification of Letters Patent.

Application filed September 13, 1911.

Patented Mar. 10, 1914. Serial No. 649,103.

To all whom t may concern Be it known that I, CHARLES I/V. NEAL, a citizen of the United States, residing at Cheraw, in the county of Chesterfield and State of South Carolina, have invented new and useful Improvements in Lock-Nuts, of which the following is a specification.

This invention relates to certain and novel improvements in lock nuts.

In carrying out my invention it is my purpose to provide an ordinary nut and bolt with means whereby the said nut will be efectively secured upon the bolt to prevent the removal of the same, but which is provided with separable means whereby the said nut may be easily and quickly removed when desired.

Vith the above objects in view, the invention resides in the novel construction and combination of parts hereinafter fully described and claimed.

In the drawings-Figure 1 is a front elevation of a nut and bolt constructed in accordance with the present invention. F ig. 2 is a longitudinal sectional view of the same illustrating the manner of removing the nut from the bolt.

Referring now to the drawings in detail, the numeral 1 designates a bolt having its ends provided with the usual threads. The bolt l in the present instance is formed with a channel or depression 2 which extends a suitable distance from the end of the bolt and which intersects the threads of the bolt.

The numeral 3 designates a nut. This nut is of the ordinary construction, but has its outer face formed with an annular depression 4. A pair of springs 5 and G have their outermost terminal portions 7 recessed within the annular depression 4 and terminating flush with the corners 8 of the nut whereby positioning the said springs in diametrcally opposed relation one to the other. The said springs have their opposed free terminal portions 9 curved in opposite directions and of such length as to quarterlv embrace the threaded exterior surface o'l' the bolt 1 and lie in the path of movement oi the depression Q and adapted to alternately engage the depression 2 upon the iteeding of the bolt.

The numeral 7 designates a pin which is adapted to be inserted within the recess or depression of the bolt and to lie in a line parallel with the threaded portion o'l. the said bolt, so as to lill the space provided bv the depression and to prevent the endsI (if the arcuate springs engaging with the said depression, and thus providing vtor the removal oit the nut 't'rom the bolt.V

Having thus described theinvention,what I claim is In combination with a bolt having a longitudinal groove therein oi U -shaped conliguratio-n. a nut threadedly mounted on the bolt and provided with an annular channel in one of its surfaces, a spring car ried by the nut and arranged within the said annular channel, said spring having one of its ends secured radially ol the bolt and having its -free end provided with a portion arranged at a tangent to the bolt, and ter1ninally extended upwardly toward the outer wall of the annular channel and then extended inwardly and engaging one otl the straight walls of the groove in the bolt and providing an outer longitudinal convexity arranger-l at an angle to the outer wall of the channel, and an inner longitudinal concavity extending beyond and in spaced relation to the inner curved wall of the groove.

In testimony whereof I allix my signature in presence of two witnesses.

CHARLIE IVATSON NEAL.

lVitnesses R. T. CAstroN, S. M. lilNKLnA.

Copies o! this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, D. C." 

